spnas regnition

[dawncc]

1. spnas支持regnition，加入pipeline流程中
2. 增加fine_tune阶段，对torchvision的权重进行适配和转换
3. 修正parallet阶段的算子，可以直接服用torchvision的fpn的权重

Signed-off-by: cc dawn.cc022@gmail.com

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